QuickFIX is the worlds first Open Source C++ FIX (Financial Information eXchange) engine, helping financial institutions easily integrate with each other.
The SVN repository is now locked. Latest code is hosted at github.
https://github.com/quickfix/quickfix

Project-based Calendaring System is a PHP based web-calendar focused on scheduling appointments for people by a Project Manager. Appointments can be linked to pre-defined projects, giving insight in the progress of running projects.

Null Groupware is a self-hosting web based groupware system written in c. It's portable, modular, and has a complete api for third party developers' extensions. Features include event scheduling, call tracking, contact management, web-based email, a w

Open Faktura is a Open-Source Faktura System that uses PostgreSQL as Database Engine and is written in C++/QT, because it is platform indepentend and QT is a powerful C++ Framework with good SQL Features.

The future of information technology will be based on controlling the flow of natural light. This project is an attempt to establish the code (or software) that will enable this to happen. It involves rewriting an OS from the ground up.